| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Isobel ALLSOP | 10 | Grantham SC | 1:19.94 |
| 2 | 2 | Elysia SMITH | 10 | Louth Dolphins SC | 1:19.33 |
| 3 | 3 | Lucy WILSON | 10 | South Lincs Competitive SC | 1:18.40 |
| 4 | 4 | Skye HOLMES | 10 | Louth Dolphins SC | 1:17.24 |
| 5 | 5 | Sophie COOKSEY | 10 | Louth Dolphins SC | 1:17.37 |
| 6 | 6 | Emilie WEBB | 10 | Grantham SC | 1:18.40 |
| 7 | 7 | Isla GRAY | 10 | Grantham SC | 1:19.82 |
| 8 | 8 | Mieke MCDONALD | 10 | Deepings SC | 1:21.65 |